game.lua

--
-- UPDATE
--
local accum = 0
function Game:update(dt)
  accum = accum + dt
  if (accum < 1/60) then
    return
  end

  -- just skip frames if we slow down (window dragging)
  while (accum > 1/60) do
    accum = accum - 1/60
  end

  dt = 1/60

  self.controls:update()
  self.timer = self.timer + dt
  self.levelTimer = self.levelTimer + dt
  if self.controls:pressed('pause') then
    self:togglePause()
  end

  if not self.paused then
    self:updateEntities(dt)
  end
  self:removeEntities()
end